EP0997343A3 - Projection type headlamp - Google Patents

Projection type headlamp Download PDF

Info

Publication number
EP0997343A3
EP0997343A3 EP99121402A EP99121402A EP0997343A3 EP 0997343 A3 EP0997343 A3 EP 0997343A3 EP 99121402 A EP99121402 A EP 99121402A EP 99121402 A EP99121402 A EP 99121402A EP 0997343 A3 EP0997343 A3 EP 0997343A3
Authority
EP
European Patent Office
Prior art keywords
focus
projection type
reflector
type headlamp
semi cylindrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99121402A
Other languages
German (de)
French (fr)
Other versions
EP0997343A2 (en
EP0997343B1 (en
Inventor
Takashi Futami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stanley Electric Co Ltd
Original Assignee
Stanley Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stanley Electric Co Ltd filed Critical Stanley Electric Co Ltd
Publication of EP0997343A2 publication Critical patent/EP0997343A2/en
Publication of EP0997343A3 publication Critical patent/EP0997343A3/en
Application granted granted Critical
Publication of EP0997343B1 publication Critical patent/EP0997343B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A projection type headlamp (1) comprising a semi cylindrical lens portion (2a) having a focus line (fL) in the horizontal direction, half divided non-spherical lens portions (2bs) which are attached to the right and left side of the semi cylindrical lens portion (2a) to form an elongated oval projecting lens (2) having a horizontally long extension, and a reflector (3) which has a first focus (f1) in vicinity of the light source (4) of the projection type headlamp (1) and a second focus (f2) in the vicinity of the focus line (fL) in the vertically cross-sectional view. The reflector (3) has a free curved surface (FR) adjusting light rays emitted from the light source (4) to the predetermined illuminating angle. The semi cylindrical portion (2a) has no optical action in the horizontal direction and the light distribution pattern can easily determined only by the reflector (3) in this direction.
EP99121402A 1998-10-27 1999-10-27 Projection type headlamp Expired - Lifetime EP0997343B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP30578198 1998-10-27
JP30578198A JP3677720B2 (en) 1998-10-27 1998-10-27 Projector type headlamp

Publications (3)

Publication Number Publication Date
EP0997343A2 EP0997343A2 (en) 2000-05-03
EP0997343A3 true EP0997343A3 (en) 2001-01-31
EP0997343B1 EP0997343B1 (en) 2007-02-14

Family

ID=17949281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99121402A Expired - Lifetime EP0997343B1 (en) 1998-10-27 1999-10-27 Projection type headlamp

Country Status (5)

Country Link
US (1) US6338568B1 (en)
EP (1) EP0997343B1 (en)
JP (1) JP3677720B2 (en)
KR (1) KR100385604B1 (en)
DE (1) DE69935102T2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001283618A (en) * 2000-03-31 2001-10-12 Stanley Electric Co Ltd Lamp for vehicle
JP2001351408A (en) * 2000-06-02 2001-12-21 Stanley Electric Co Ltd Lighting fixture for vehicle
JP4391870B2 (en) * 2004-04-02 2009-12-24 株式会社小糸製作所 Lighting fixtures for vehicles
JP4971137B2 (en) * 2004-04-08 2012-07-11 フェデラル−モーグル コーポレイション Chromatic aberration correction projector, lamp, headlight
US7255264B2 (en) * 2004-04-24 2007-08-14 De Leon Hilary Laing Cellular phone-based automatic payment system
US7585096B2 (en) * 2005-05-18 2009-09-08 Visteon Global Technologies, Inc. Compound trough reflector for LED light sources
EP1762776B1 (en) * 2005-09-09 2015-04-15 Valeo Vision Method for the manufacturing of a module or a vehicle headlamp
US7207700B2 (en) * 2005-09-22 2007-04-24 Visteon Global Technologies, Inc. Near field lens with spread characteristics
FR2894647B1 (en) * 2005-12-09 2010-03-12 Holophane Sa MOTOR VEHICLE PROJECTOR
DE102006050880A1 (en) * 2006-06-30 2008-04-17 Osram Opto Semiconductors Gmbh Opto-electronic component and illumination device
DE102006044019B4 (en) * 2006-09-15 2011-12-29 Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung Stiftung des öffentlichen Rechts reflector spotlight
TWI299311B (en) * 2006-09-27 2008-08-01 Ind Tech Res Inst Illuminating device
CN201141922Y (en) * 2007-10-16 2008-10-29 东莞勤上光电股份有限公司 Secondary optical lens
JP5152571B2 (en) * 2008-03-24 2013-02-27 スタンレー電気株式会社 Vehicle headlamp
JP5152572B2 (en) * 2008-03-24 2013-02-27 スタンレー電気株式会社 Vehicle headlamp
JP5678791B2 (en) * 2011-05-11 2015-03-04 市光工業株式会社 Vehicle lighting
FR2998036B1 (en) * 2012-11-12 2015-05-01 Valeo Vision LIGHTING MODULE FOR MOTOR VEHICLE PROJECTOR COMPRISING MULTIPLE LIGHT SOURCES
JP6317087B2 (en) * 2013-10-11 2018-04-25 株式会社小糸製作所 Vehicle lighting
US10697607B2 (en) 2014-06-08 2020-06-30 Valeo North America, Inc. Thin aspect lighting system with cutoff
CN105020654B (en) * 2015-08-03 2017-03-08 台州市黄岩广环工贸有限公司 There is the headlight lamp group structure of the dual light area of horizontal hot spot
US11226078B2 (en) * 2018-04-23 2022-01-18 Stanley Electric Co., Ltd. Vehicular lamp fitting
CN110630984A (en) * 2019-09-25 2019-12-31 刘凡德 Method for manufacturing multi-color LED light beam line lamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001185A1 (en) * 1979-10-24 1981-04-30 R Gyr Headlight for vehicle
DE3311762A1 (en) * 1983-03-31 1984-10-04 Robert Bosch Gmbh, 7000 Stuttgart Headlight for motor vehicles
EP0854316A2 (en) * 1997-01-17 1998-07-22 Stanley Electric Co., Ltd. Projector type lamp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6210803A (en) 1985-07-05 1987-01-19 スタンレー電気株式会社 Lamp apparatus for vehicle
JPS63111703A (en) 1986-10-29 1988-05-17 Murata Mfg Co Ltd Dielectric coaxial resonator
DE19613445C2 (en) 1996-04-04 2002-04-18 Man B & W Diesel As Kopenhagen Device for balancing mass forces
JPH10261302A (en) 1997-01-17 1998-09-29 Stanley Electric Co Ltd Projector lamp
JP3562687B2 (en) 1997-01-17 2004-09-08 スタンレー電気株式会社 Projector type lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001185A1 (en) * 1979-10-24 1981-04-30 R Gyr Headlight for vehicle
DE3311762A1 (en) * 1983-03-31 1984-10-04 Robert Bosch Gmbh, 7000 Stuttgart Headlight for motor vehicles
EP0854316A2 (en) * 1997-01-17 1998-07-22 Stanley Electric Co., Ltd. Projector type lamp

Also Published As

Publication number Publication date
JP2000133017A (en) 2000-05-12
JP3677720B2 (en) 2005-08-03
KR20000035072A (en) 2000-06-26
DE69935102D1 (en) 2007-03-29
EP0997343A2 (en) 2000-05-03
DE69935102T2 (en) 2007-08-30
US6338568B1 (en) 2002-01-15
KR100385604B1 (en) 2003-05-27
EP0997343B1 (en) 2007-02-14

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